Htoert f



H F. KRANTZx MULTIPLE SWITCH. APPLICATION man JUNE 16, m1.

24,908. v v Patented Dee. 16, 1919. I

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IEI'U'BERT F. KRANTZ, F BROOKLYN, NEW YORK, ASSIG-NOR 'IQ KRANTZ MANUFACTUR- ING- COMPANY, INC., 0F BROOKLYN,'1\TEW YORK, A CORPORATION OF NEW YORK. I

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I Specification of Letters-Patent. Patented Dec. 16, 1919.

"Original application filed March 22, 1916, Serial No. 85,852. Divided and this application filed June 16, 1917.

. Serial No.

To all whom) 2'25 may concern:

Be it known that I, HUBERT F. KRANTZ, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Tmprovementsin Multiple Switches, of which the following is a specification.

This invention relates to amultiple switch, adapted particularly for use in connection with safet panel boxes and the like such as are s own and described in my copending application Serial No. 85,852 filed March 22, 1916, the presentapplica tion being a division of said copending ap' plication and being also a continuation in par; of my Patent 1,248,415, dated-Nov. 27, 191

The object of this invention is to provide a simple, practical and efficient means for mounting and operating a plurality of switch blades. w

A more specific object is to provide improved means whereby a plurality of switch blades-arranged within a panel box or'th'e like may be operated and controlled by.

means of a single operating handle projectin exteriorly of the box.

ther objectsand aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description of the elements, combinations,

arrangements of parts and applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended claims.

In the accompanying drawings which are to be taken as a part of this specification, and in which I have shown merely a preferred form of embodiment of the invention- Figure 1 is aside elevational view of a switch device constructed in accordance with this invention. 4

Fig. 2 is a top plan view of the structureshown in Fig. 1, and v Fig. 3 is an end view. 1

Referring to the .drawings for describing in detail the structure which is illustrated therein, the reference character L indicates a switch operatingmechanism. This may. be of any type but thetype illustrated is such as is shown and described in my copending application Serial No. 175,191

insulated, as indicated at .13.

filed June 16, 1917, and comprises a casing having parts as 1, by means of which it may be attached to the wall of the panel-box, indicated by the dotted lines 2. y

The reference character G indicates the operating handle which projects exteriorly pivot as fully described and claimed in said last copending application.

The bracket tis formed of inverted U- shape, having its two legs rip-standing at opposite sides of a flat connecting' ortion 8,

said legs being adapted to receive the pivot pin 5.

d A plate=9 is connected to the bottom surface of the part 8 of the bracket and this plate 9 is elongated in the direction of the axis of the pivot pin 5 and carries a plurality of switch blades H connected thereto in spaced relation along its length. The

switch blades are arranged substantially parallel to each other and are connected with the plate 9 by their mid-portions so that they each provide contact portions-10 at their opposite ends adapted for engaging flat against-suitable contacts, arranged to receive them as shown in the parent application. In the drawings three switch blades are illustrated. One of these is' directly beneath the bracket 4 and the others are positioned equi-distant at opposite sides of the first. They are all preferably insulated from each other and from the carrier as by means of a plate 11 of insulating material which is interposed between them and said,

plate 9. Rivets, as 12, or other suitable fa s- T vtening means may be employed for retaining the switch blades connected with the plate 9, said rivets of course being he rivet which retains the central Switchblade in position also serves to retain. the plate 9 fixed to the bracket 4.

In order to render the structure more sub stantial a second plate 14 is preferably arranged below the switch blades and insulate'd therefrom by means of a. second insusuitably lating plate 15. The rivets 12 are continued so as to clamp the plates 14 and 15 rigidly in position.

The blades are clamped between the plates 9 and 14 so that said plates 9 and 14 constitute a carrier for the blades.

It will be noted that the carrier may support any number of blades which, by their insulated relation, may be employed for simultaneously controlling any number of circuits. Also that the blades may be assembled in the carrier, and the carrier, wlth all the blades assembled, be thereafter con nected with the switch mechanism. The bracket 4 may be assembled with the carrier as a part thereof, if desired, in which instance the carrier has merely to be connected with the switch mechanism within the casing by inserting the pivot pin 5 through the bracket and connecting the bracket with said mechanism. By arranging the casing L and the switch operating mechanism intermediate the length of the carrier the strains are evenly distributed so that the single central operating handle is easily capable of producing uniformly efficient operation.

Analogous structures are shown, described and claimed in'-' my copending applications Serial Nos'. 90,519, 227,298, 42,956, 79,094, 79,097, 79,098, 264,128 and 85,854.

As many changes could be made in this construction without departing from the scope of the invention as defined in the following claims, it is intended that all matter contained in the above description or shown in the accompanying drawings, shall be interpreted as illustrative only and not in .a limiting sense.

Having thus described my invention what I claim as new and desire to secure by Let ters Patent is:

1. In a device of the class described, a carrier for a plurality of switch blades, the switch blades being connected thereto and projecting laterally therefrom at spaced points along the length of the carrier, means insulating said switch blades from each other and from the carrier, a bracket fixed to the carrier substantially midway intermediate the length thereof comprising means whereby the carrier may be pivotally mounted, and a support for the carrier comprising parts pivotally connected with said bracket and other parts operatively connected with'the bracket to swing the bracket and carrier at will.-

2. A carrier for serving as the support and operating means for a plurality of switch blades, said carrier comprising a pair of elongated metallic strain-sustaining members between which the switch blades are positioned spaced apart in substantially parallel relation to each other and from which the switch blades laterally project at difi'er- 65 ent points in the length of said strain-sustaining members, said strainsustaining members being of a character to sustain all of the strains incident to the support and operation of the. switch blades, together with means rigidly connected with one of said strain-sustaining members whereby the carrier may be pivotally supported to swing about an axis longitudinally of the carrier, and insulating members positioned between the strainsustaining members and the 7" switch blades of a character to insulate the switch blades from the strain sustaining members and from each other.

3. In a device of the class described, a plurality of flexible switch blades, a carrier for the switch blades, the switch blades being in substantially parallel relation to each other, the carrier comprising a strain-sustaining member and insulating means connected therewith and to the switch blades to insulate the switch blades from each other and from the strain-sustaining member, the strain-sustaining member being of a character to hold the switch blades by their mid portions so that opposite ends of the switch blades project in opposite directions laterally therefrom, and means whereby the carrier may be swung to rotate the switch blades by their mid portions for bringing the opposite ends of the switch blades into flexed contact with suitable conductors.

4. In a device of the class described, a plurality of double ended flexible switch blades, a carrier for the switch blades comprising an elongated metallic strain-sustaining member, the switch blades being arranged all at one side of said strain-sustaining member and being in substantially parallel relation to each other spaced apart along the length of the strain-sustaining member, means fixing the switch blades by their mid portions to the strain-sustaining member so that the opposite contact ends of the switch blades project in opposite directions laterally from the strain-sustaining member, means insulating the switch blades from each other and from the strain-sustaining member, and means whereby the carrier may be moved for bringing the opposite contact ends of the blades into flexed engagement with suitable conductors.

5. In a device of the class described, a plurality of double-ended switch blades, a carrier for the switch blades comprising an elongated metallic strain-sustainingmember, the switch blades being arranged in substantially parallel relation to each other spaced apart along the length of the strainsustaining member, means fixing the switch blades by their mid portions to the strainsustaining member so that the opposite con-' tact ends of the switch blades project in opposite directions laterally from the strainsustaining member, means insulating the switch blades from each other and from the strain sustaining member, and supporting .length thereof and comprising elements whereby to move the carrier for bringing the opposite contact ends of the blades into engagement with suitable conductors."

6. In a device of the class described, a plurality of double-ended switch blades, a carrier for the switch blades comprising an elongated metallic strain-sustaining memher, the switch blades being arranged in substantially parallel relation to each other spaced apartalong the length of the strainsustaining member, means fixing the switch 1 .blades by their mid portions to the strainsustaining member so that the opposite contact ends of the switch blades project in opposite directions-laterally from the strain sustaining member, -means insulating the switch blades from each other and from the strainsustaining member, and supporting and operating means for the carrier comprising elements whereby to move the carrier for bringing the opposite contactends of the blades into engagement with suitable conductors. i

7. In a device of the class described, a plurality of switch blades, a' carrier for the switch blades comprising a pair of elongated metallic strain-sustaining clamp members,

supportingand operating means for the car- I161 comprlsing elements whereby to swing the carrier about an axis longitudinally of the carrier, the switch blades being clamped between said clamp members andbeing arranged to extend laterally from the pivotal axis of the carrier to swim therewith into and out of engagement with suitable conductors, and means insulating the switch blades from each other and from the clamp plates.

S. C. WHrrLooK. I v

HUBEnT F. KRANTZT In testimony whereof I afix my signature 

